Then go here and Download LGNPST
Open the file and extract these files to your desktop LGNTPS_Components_Ver_5_0_12_0.msi
LGNTPS_General_v1.2_Lab_Version.msi
LGNTPS_Generic_Models_ver_5_0_10_0.msi
Also extract LGNTPST.exe and the Model and the cdaworkshop folders.

Run LGNTPS_General_v1.2_Lab_Version.msi file, let it install if ask for reboot do it. Then run LGNTPS_Components_Ver_5_0_12_0.msi and let it install if ask for reboot do it. Then Run LGNTPS_Generic_Models_ver_5_0_10_0.msi let it install if ask for reboot do it.

After all these files install, locate the LGNTPS.exe file on your desktop and copy it to: C:\LG Electronics\LGNPST. Make a shortcut to the desktop because it`s required to run the program. Also copy the Model folder on your desktop to C:\LG Electronics\LGNPST as well. Go to C:\LG Electronics\LGNPST\Model and delete all the files except for MS690.dll, MS690ZV3_36.scr, Reggie.exe and Setup.exe. **Then drag the MS690.dll file on top of the Reggie.exe file to register the MS690.dll file.** <----Very Important step, Make sure to have Administrator Rights.

After all of the above download this file MS690ZV4-root.zipand extract it to your C:\ drive. (On your C:\ should be the following files: 3017nam1.prl, busybox, MS690ZV4-root.bin, su and Superuser.apk)

Run LGNTPS from your desktop shortcut. Make sure the program is set to Provision option and under Provision should be Upgrade. Where it says bin File click on the folder and look for MS690ZV4.bin that should be on your C:\ drive and select it. Check the box where says SCR file and select the MS690ZV3_36.scr on C:\LG Electronics\LGNPST\Model. Check the PRL File box and select the 3017nam1.prl on you C:\ drive.

After that is done click start, the program needs the SPC code. So open cdaworkshop on your destop and open cdma workshop.exe. After the programs load select your COM port where the cellphone is connected (It is shown on the right side of LGNTPS on the phone info tab) then click connect. Go to the security tab and where it says SPC scroll down and select the LG method. Click read and write down the your SPC code, then type it in LGNTPS and the process of updating your phone should begin. When the process is at 43% the cell phone restart DON`T do anything to your phone (don`t even touch it until it reachs 100%). After it reachs 100% the phone should be on the lock screen without service.

To get service back and root you need to download adb. Go to Android SDK | Android Developers and download the file that ends on .zip. Extract it to your C:\ drive. Go to C:\android-sdk-windows and open sdkmanager.exe. After is open a windows will pop out click reject on all files except for:
Android SDK Tools and Android SDK Platform tools. Make sure USB debugging is activated (On your phone go to settings> applications>development and check USB debugging) Then open up Cmd and type the following: cd C:\android-sdk-windows\platform-tools.
After that type: adb push C:\su /data/local/tmp/ (to copy the su file)
then type: adb push C:\busybox /data/local/tmp/ (to copy the busybox file)
Then type: adb install C:\Superuser.apk (to install the superuser app)

Reboot your phone and check if you got service. To install new Recovery Menu for 2.2. phones and get service back go to this thread Then install a program from market called anreboot. Install the app and open it up, then select reboot system. If everything went alright your phone will restart and it will have service and will be rooted.

To verify root go to market download terminal emulator from Jack Pal. Then open it up and type su, if you get # you are successfully root.

If you want to install the first custom rom for 2.2.1 stock phones follow this guide to do it. To install this rom follow this steps:

First download it and copy it to Android images (This is a folder for easier access on the sdcard, If you don`t have it you will have to create it)

Then reboot to recovery and select wipe option, then select wipe all userdata (You will have to erase everything from your phone to avoid errors.)

After that go back and select flash zip menu, then select toggle Signature Verify.
Next choose Flash zip from sdcard, navigate to Android Images folder and select
the downloaded image with .zip ending.

Click on menu to confirm and let it do it`s job. It will take a while to finish.
After it`s done go back and select reboot system now.

Reboot your phone and check if you got service. If you don`t go to this post and follow the instructions to install Recovery menu http://androidforums.com/getitnowmarketing/256286-custom-recovery-ms690-optimus-m.html. Then install a program from market called anreboot. Install the app and open it up, then select reboot recovery. If everything was ok your phone screen will be black after the LG logo when phone is starting up. Don`t panic, to get the phone out of the black screen remove the battery. Then put the battery back and turn on phone. Now your phone will be ROOTED and SERVICE.

i dont understand the part where you install custom recovery and it says "To use download & unzip & copy flash_image and recovery-thunderc-m-v1.2.0-GNM.img to the root of your sdcard" and i dont understand what to do from there...my phone is rooted but i cant get my service.please help! thanks!!

i dont understand the part where you install custom recovery and it says "To use download & unzip & copy flash_image and recovery-thunderc-m-v1.2.0-GNM.img to the root of your sdcard" and i dont understand what to do from there...my phone is rooted but i cant get my service.please help! thanks!!

Click to expand...

Download the files and unzip them, once they are unzipped place them in your sdcard, you will need to use command prompt and run adb shell, grant root access to the cmd. Now you should see a # instead of $, type the commands that are located in the box on the custom restore link. Once that is done restart your phone and you will have signal.

Sorry but i have a noob questions. After you download the Android SDK zip file are you suppose to run the application that comes with it before you start entering the cmd promts? I followed your guide but when i got to the cmd promts it keeps telling me that file cannot be found.

you need to go to my computer and select properties.hit the button (enviroment variables) then add the folder "platform-tools" to the "path" option under "system Variables",click EDIT then AFTER C;/ enter the folder location....then you should be all set.